Case Report
Copyright ©The Author(s) 2017.
World J Gastroenterol. Oct 14, 2017; 23(38): 7054-7058
Published online Oct 14, 2017. doi: 10.3748/wjg.v23.i38.7054
Figure 1
Figure 1 Computed tomography imaging and surgical specimen. Dynamic contrast-enhanced computed tomography (CT) imaging showed that a cyst-like lesion (A) contained a stripe-like, slightly hyperdense area and patchy hypodense areas that were hyper-enhanced in the arterial phase (B) and hypo-enhanced in the portal phase (C), whereas the central portion remained unenhanced throughout the arterial and portal phases. Sections through the tumor disclosed grayish-yellow, solid tissue that showed relatively homogenous internal structures (D).
Figure 2
Figure 2 Histological image showing that the tumor cells were spindle shaped and located in a loose myxoid background (hematoxylin-eosin staining; original magnification, × 400).
Figure 3
Figure 3 Histological image showing that the tumor cells contained small- to medium-sized nucleoli with readily identified mitotic figures (hematoxylin-eosin staining; original magnification, × 400).
Figure 4
Figure 4 Immunohistochemical image showing that the tumor tissue was positive for desmin (original magnification, × 400).
Figure 5
Figure 5 Immunohistochemical staining for differential diagnosis. The tumor tissue was negative for CD31 (A), Factor VIII (B), Melan A (C) and HMB45 (D) (original magnification, × 200).